The student did not preheat the gravity filtration apparatus

Assignment Help Chemistry
Reference no: EM13163281

A student rushed through this experiment. Describe the effect that the following procedural changes would have on percent recovery of acetanilide. Briefly explain the basis of each answer. a) Rather than adding 0.5-mL portions of boiling solvent to the acentanilide, the student added 5-mL portions of boiling solvent. b) The student did not pre-heat the gravity filtration apparatus in Part 3. c) The student forgot to cool 5 mL of solvent in Part 5 and washed the crystals with room-temperature solvent.

Reference no: EM13163281

Questions Cloud

Calculate the density and specific gravity of the object : An object made of aluminum has a mass of 8.37g. When it was placed in a graduated cylinder containing 20.0mL of water, the water level rose to 23.1mL. Calculate the density and specific gravity of the object.
Explain the density of rhombic sulfur : The numbers above are also the only numbers I am given. I do not have delta G's of molar G's. If you have an answer that solves for the G's and shows me step by step how to solve the problem, you will get five stars.
How many molecules are in the graduated cylinder : A graduated cylinder contains 10.0ml of water. If the volume of a single water molecule is 2.99 x 10e-23 cm e3, how many molecules are in the graduated cylinder?
Will the gain resulting from the involuntary conversion : What amount of Sec. 1250 ordinary income must be recognized and will the loss resulting from the destruction of her daughter's pony be used to determine net Sec. 1231 gains or losses? Yes it can be determined
The student did not preheat the gravity filtration apparatus : The student did not pre-heat the gravity filtration apparatus in Part 3. c) The student forgot to cool 5 mL of solvent in Part 5 and washed the crystals with room-temperature solvent.
How is a charge different from a mortgage : How is a "charge" different from a mortgage?
Explain the significance of the chromic acid test : Explain the significance of the chromic acid test. What would you observe in the case of a positive result? Do you expect 9-fluorenol to give a positive or negative result? What about the 9-fluorenone?
Explain rnase is an enzyme that cleaves : RNAse is an enzyme that cleaves the P-O5\' bond in RNA. It has two His residues in the active site. Suggest a plausible explanation
Coordinated school health program : What is the Coordinated School Health Program. What are the 8 components of the Coordinated School Health program, what is the significance of each of the 8 areas?

Reviews

Write a Review

Chemistry Questions & Answers

  What velocity would an electron need

What velocity would an electron 9.11*10^-31 kg need for its de Broglie wavelength to be that of red light 745nm ?

  How many minutes does it take

A certain first-order reaction (A products) has a rate constant of 4.80×10-3 s^-1 at 45 C. How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration?

  Calculate the mass of sodium iron produced

In a reaction 8200 g of sodium reacts with 74.00 g of ferric oxide to form sodium oxide and iron metal. Calculate the mass of sodium iron produced.

  What volume will the gas occupy

a gas has a volume of 95 mL at a pressure of 930 torr. what volume will the gas occupy if the pressure is increased to 970 torr?

  How many gold atoms would have to be laid

The radius of a gold atom is 144 pm. How many gold atoms would have to be laid side by side to span a distance of 2.63 mm?

  Estimate total alkalinity of the water

A water sample has a pH of 8.21 and a total calcium concentration of 143 ppm. What is the total alkalinity of the water?

  How long is the wire

A copper wire (density = 8.96 g/cm3) has a diameter of 0.26 mm. If a sample of this copper wire has a mass of 43 g, how long is the wire?

  What is the equilibrium constant kp and kc

At 25 oC, experiment shows that the total pressure of the gases in equilibrium with the solid is 0.116 atm. What is the equilibrium constant Kp and Kc?

  What volume of hydrogen at stp is produced

Mg + 2 HCL -> MgCl2 + H2 What volume of hydrogen at STP is produced from the reaction of 50.0 g of Mg and the equivalent of 75 g of HCl?

  How much heat is produced by the dissolution process

When 6.6 g solid NaOH is dissolved in 30.0 g of water in a coffee cup calorimeter, the temperature rises from 25.5 to 36.1. How much heat is produced by the dissolution process? the specific heat is 4.184

  Determine the microcanonical partition function

Determine the microcanonical partition function, omega. Determine fundamental relation of system, using Stirling's approximation Determine the energy and heat capacity for the system as a function of temperature using Stirling's approximation. Det..

  What volume does the gas occupy at this height

A balloon filled with helium gas has a volume of 620 mL at a pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm. Assuming that the temperature has remained the same, what volume does the gas..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd